防火墙安全区域及安全策略配置 一.学习目的 掌握防火墙安全区域的配置方法 掌握安全策略的配置方法 二.拓扑图 三.场景 你是公司的网络管理员.公司总部的网络分成了三个区域,包括内部区域(trust),外部区域(untrust)和服务器区域(DMZ).你设计通过防火墙来实现对数据的控制,确保公司内部网络安全,并通过DMZ区域对外网提供服务器. 四.学习任务 步骤一.登陆防火墙 An initial password is required for the fir
Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to find the number of connected components in an undirected graph. Example 1: 0 3 | | 1 --- 2 4 Given n = 5 and
Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2, col2). The above rectangle (with the red border) is defined by (row1, col1) = (2, 1) and (row2, co
Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. The update(i, val) function modifies nums by updating the element at index i to val. Example: Given nums = [1, 3, 5] sumRange(0, 2) -> 9 update(1, 2
Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2, col2). The above rectangle (with the red border) is defined by (row1, col1) = (2, 1) and (row2, co
Given a 2D board containing 'X' and 'O', capture all regions surrounded by 'X'. A region is captured by flipping all 'O's into 'X's in that surrounded region. For example, X X X X X O O X X X O X X O X X After running your function, the board should
